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Francis Claude Blake
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306. Blake, F. C. Jan. 5. Gas and like engines.-Relates to a trembler for the ignition coils of high-speed engines. The soft-iron trembler blade a, with an armature b facing the coil core d, has its upturned end a' riveted or otherwise secured to a transverse flat spring c of steel or phosphor bronze. The spring is either clamped at the required height in uprights c', Figs. 1 and 2, or held between split cylinders h, Fig. 4, journalled in the uprights, in which case the latter are divided and furnished with binding- screws so that the angle and tension of the spring may be varied. The spring c may be arranged in the same plane as the trembler blade instead of at right-angles thereto. The blade a has the usual platinum contact f meeting the platinum-pointed screw g.
GB190400306D1904-01-051904-01-05Improved Trembler for Induction Coils.
ExpiredGB190400306A
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Improvements in electrical speakers working with alternate current produced by motorcycle and similar magnetic flywheels (Machine-translation by Google Translate, not legally binding)